水泥中温降粘降滤失剂DWG-Ⅰ的研究  

MEDIUM TEMPERATURE VISCOSITY/FILTRATE LOSS REDUCER DWG-Ⅰ FOR OILWELL CEMENT

作　　者：王铁军[1] 罗云[1] 鲍春雷[1] 

机构地区：[1]大庆石油学院石油工程系,黑龙江安达151400

出　　处：《油田化学》2000年第3期197-200,共4页Oilfield Chemistry

摘　　要：本文介绍了一种油井水泥中温降粘降滤失剂DWG Ⅰ的研制方法和室内评价结果。DWG Ⅰ能有效地改善G级水泥浆的流动性 ,降低滤失量 ,提高水泥石的抗压强度和实现水泥浆稠化曲线呈“This paper presents the preparation, performance properties and field uses of viscosity and filtrate loss reducer DWG Ⅰ for cement slurries for oilwell cementing. DWG Ⅰ is a product of sulfonated hydrolyzed polyacrylonitrile with citric acid, MgO, ZnCl 2 and other chemicals. Addition of DWG Ⅰ in several percent significanlty improves the fluidity and rheologic behavior and decreases the filtrate loss of the grade G cement slurries, increases the strength of the setted cement and controls the consistence development and setting process in such a way that the consistence and setting curves obtained are of rectangular form. The cementing operations with DWG Ⅰ treated slurries in two wells are successful.

关 键 词：降粘降滤失剂 水泥外加剂 油井水泥 固井 

分 类 号：TE256.6[石油与天然气工程—油气井工程] TE256.1